What is light pen and pen-based system?
Light Pen:
The light pen is a handheld pointing input device. It looks like a pen. It is a
Sight-sensitive input device. It is connected with the computer by a wire.
The-tip of pen contains a light-sensitive element. This device also contains a
button. Input is given to the computer directly by touching the screen with
pen. Light Pen device is usually used by engineers and graphic designers.
Pen-Based System:
Pen-based system uses a pen-like input device. This input device is called
stylus. This system allows the user to enter handwriting and marks into
computer. The user writes information on- the display screen using stylus. The
pen-based system uses special software. This software translates handwritten
information or marks into a form that can be stored and processed by the
computer.
Stylus:
Stylus is an input device. It looks like a pen. It is used for drawing images on
a specially designed graphics screen or digitizer.
|
